公开(公告)号：US20240229412A9

公开(公告)日：2024-07-11

申请号：US18491660

申请日：2023-10-20

Applicant: Liebherr-Hydraulikbagger GmbH

Inventor： Florian EGGLE ,  Florian STROBEL ,  Thomas ZITTERBART

IPC: E02F3/36

CPC classification number: E02F3/3686 ,  E02F3/3609

Abstract: The disclosure relates to an excavator bucket, which can be used both as a front loader bucket and as a backhoe bucket. The excavator bucket comprises a shell delimiting a bucket volume and a retaining device connected to the shell, via which the excavator bucket can be detachably connected to a quick coupling device of an implement. The retaining device comprises a first bolt for establishing a first connection to the quick coupling device and bolt receptacles arranged in a collinear manner to each other for establishing a second connection to the quick coupling device. According to the disclosure, the retaining device further comprises a second bolt, by means of which the first connection to the quick coupling device can be established as an alternative to the first bolt, wherein the second bolt is arranged on a side of the bolt receptacles opposite to the first bolt when viewed from above the retaining device. The bolts are arranged such that the second connection can be established via the same bolt receptacles, both when using the first bolt and when using the second bolt. The disclosure further relates to a method for converting the excavator bucket according to the disclosure between a backhoe bucket operation and a front loader bucket operation.

公开(公告)号：US20210301497A1

公开(公告)日：2021-09-30

申请号：US17200015

申请日：2021-03-12

Applicant: Liebherr-Hydraulikbagger GmbH

Inventor： Daniel BAYER ,  Dirk ASAM

IPC: E02F9/20 ,  B60L50/60 ,  B60L50/40 ,  E02F9/18 ,  B60L1/02 ,  B60L1/00 ,  E02F9/02 ,  E02F9/12

Abstract: The present invention relates to a mobile work machine, in particular to an excavator, that comprises an undercarriage having a tracked chassis, a rail mounting, or a wheeled chassis, a superstructure having an attachment fastened thereto, and a slewing ring that rotatably connects the undercarriage and the superstructure to one another. The work machine is characterized by a decentralized energy supply and/or by a decentralized supply network, preferably a DC supply network, and a slip ring for transferring electrical energy between the superstructure and the undercarriage.

公开(公告)号：USD898777S1

公开(公告)日：2020-10-13

申请号：US29681555

申请日：2019-02-26

Applicant: Liebherr-Hydraulikbagger GmbH

Designer： Jonas Lorenz

公开(公告)号：US10214873B2

公开(公告)日：2019-02-26

申请号：US15371287

申请日：2016-12-07

Applicant: Liebherr-Hydraulikbagger GmbH

Inventor： Simon Meier ,  Thomas Zitterbart

IPC: E02F3/36 ,  E02F3/38 ,  E02F9/22 ,  F15B1/02

Abstract: The invention relates to a valve unit for the exclusive hydraulic actuation of the locking means of a mechanical quick-changer for attachments of a construction machine, wherein the valve unit comprises a feed pressure connector for applying the feed pressure, a first valve unit outlet for connecting an unlocking pressure line, a second valve unit outlet for connecting a locking pressure line, at least one discharge to the tank, and at least two switchable directional valves, with the feed pressure connector being connected or connectable to the second valve unit outlet via a serial connection of the at least two switchable directional valves.

公开(公告)号：US20190023170A1

公开(公告)日：2019-01-24

申请号：US15997069

申请日：2018-06-04

Applicant: Liebherr-Hydraulikbagger GmbH

Inventor： Bernhard MEITINGER ,  Volker HILSENBECK

IPC: B60P1/16

Abstract: The present invention relates to a construction machine having at least one material receiver that is adjustable by means of at least one hydraulic actuator for unloading, with the required feed pressure for the actuator actuation being able to be provided by a hydraulic circuit of the construction machine and with the feed pressure being able to be limited to a limit pressure by means of at least one pressure limiting device, wherein the construction machine comprises a weighing system for determining the current load weight of the material receiver; and a control for the hydraulic circuit is provided that adapts the limit pressure of the pressure limiting device in dependence on the determined load weight.

公开(公告)号：US20240150998A1

公开(公告)日：2024-05-09

申请号：US18499011

申请日：2023-10-31

Applicant: Liebherr-Hydraulikbagger GmbH

Inventor： Daniel VELOSO ,  Christoph HESS

IPC: E02F9/20 ,  E02F3/88 ,  E02F9/16

CPC classification number: E02F9/2025 ,  E02F3/8825 ,  E02F9/16 ,  E02F9/2012

Abstract: The disclosure relates to a mobile working machine comprising a driver's cab for accommodating an operator of the mobile working machine, a control station for the operator arranged in the driver's cab, a primary steering system arranged in front of the control station in the direction of travel of the mobile working machine, and a secondary steering system, arranged laterally offset from the control station in the direction of travel of the mobile working machine, wherein the primary steering system has a steering column section, which cooperates with a steering column mount to transmit a steering actuation to a control unit implementing the desired steering movement, wherein the steering column section and the steering column mount can be connected to each other in a rotationally fixed manner via a plug-in connection, such that the operator is able to dismount the primary steering system depending on a perceived visual restriction.

公开(公告)号：US10927867B2

公开(公告)日：2021-02-23

申请号：US16259128

申请日：2019-01-28

Applicant: Liebherr-Hydraulikbagger GmbH

Inventor： Bernhard Meitinger ,  Manuel Wirthensohn

IPC: F15B21/14

Abstract: The present invention relates to a work machine having at least one hydraulic actuator for actuating a piece of working equipment and having a first displacement unit that is driven by a drive assembly of the work machine and that feeds the hydraulic actuator with hydraulic medium from a hydraulic tank, wherein at least one second displacement unit is provided that is driven by the drive assembly and that feeds the hydraulic actuator and/or further hydraulic consumers with hydraulic medium from a hydraulic tank in the working mode and that is drivable during a recovery mode by the hydraulic volume displaced by the at least one hydraulic actuator or by a hydraulic consumer to feed kinetic energy back to the drive assembly.

公开(公告)号：US20200223416A1

公开(公告)日：2020-07-16

申请号：US16742414

申请日：2020-01-14

Applicant: Liebherr-Hydraulikbagger GmbH

Inventor： Bernhard MEITINGER ,  Markus SCHROPP ,  Markus MUECKL ,  Alexander PURR

IPC: B60T13/68 ,  B60T8/17 ,  B60T8/24 ,  B60T8/18 ,  B60T13/58 ,  B60T8/32 ,  B60T7/04

Abstract: The invention relates to a braking device for a work machine comprising a pressure supply, a brake circuit, at least one brake actuable via the brake circuit, a manually controllable brake valve by means of which the brake circuit is actuable, a control unit, and at least one control valve that is controllable by the control unit and by means of which the brake circuit is actuable. In accordance with the invention, the total brake torque exerted by the at least one brake is adjustable by means of a corresponding control or regulation of the at least one control valve in dependence on at least two input signals detectable by the control unit, with a first input signal relating to a current state of the manual actuation of the brake valve and a second input signal relating to a current driving state of the work machine

公开(公告)号：US20190242094A1

公开(公告)日：2019-08-08

申请号：US16267308

申请日：2019-02-04

Applicant: Liebherr-Hydraulikbagger GmbH

Inventor： Gerhard BOLZ ,  Dieter ANSORGE ,  Florian MANG

IPC: E02F9/20 ,  G05G9/047

CPC classification number: E02F9/2004 ,  B66C13/56 ,  B66F9/0759 ,  G05G9/047

Abstract: The application relates to an operating device for operating an implement with at least one attachment, comprising at least one manual control unit and at least one controller/regulator, wherein the controller/regulator is equipped to actuate the attachment on the basis of a single control movement of the manual control unit, which is detectable by means of a single detection means provided on the manual control unit, for carrying out a linear movement.

公开(公告)号：US20190196462A1

公开(公告)日：2019-06-27

申请号：US16227526

申请日：2018-12-20

Applicant: Liebherr-Hydraulikbagger GmbH

Inventor： Gerhard BOLZ ,  Dieter Ansorge ,  Florian Mang

IPC: G05D1/00 ,  E02F9/20 ,  G06F21/31 ,  G06F1/16

CPC classification number: G05D1/0016 ,  B66C13/16 ,  E02F9/2012 ,  E02F9/2033 ,  E02F9/205 ,  E02F9/26 ,  E02F9/267 ,  G05D1/0044 ,  G05D2201/0202 ,  G06F1/163 ,  G06F21/31 ,  H04N7/18

Abstract: The present invention relates to a construction machine, in particular an earth-moving machine, having at least one control panel for inputting operator commands for the control of the construction machine, wherein the control panel has at least one display means for representing an operating interface that can be dynamically generated for the machine control; and in that a control unit is provided that recognizes a change of the mode of operation of the construction machine and adapts the operating interface in dependence on the change of the mode of operation.